Can exercise do more harm than good? Mini-heart research is uncovering new answers

"Exercise is medicine" is simply a commonly quoted phrase. But arsenic is truthful often the lawsuit with medications, much is not ever better. What counts arsenic excessively overmuch exercise, and however tin it impact the heart? Does moving a marathon oregon competing successful an Ironman triathlon boost your health, oregon mightiness it bash the opposite? The improvement of the Micro-Athlete mini-heart (a heart-on-a-chip that mimics the quality heart) is giving researchers invaluable caller insights into cardiovascular disease.